> This worked fine, but on reboot I get a ton of errors from LVM saying
> that volume with id xxxx-xxxx-xxxx... was not found and the system
> automatically reboots. This seems to happen for all volumes, not just
> the ones I changed. This error even happens for a separate volume
> group (called 'extended') that is on a separate set of disks and was
> existing prior to the CentOS 5 install.
>> Any idea on some step I missed? I know things are still fine on the
> disks, as when I boot with the CentOS DVD with the 'linux rescue'
> option all RAID & LVM volumes are available for use. So from this it
> seems I need to update some CentOS config file?
Did you re-create the initrd after adding the new raid group? Not 100%
about this but my guess would be that the initrd isn't starting md2 and thus
can't find the pv on that raid device.
-Shad